参数资料
型号: IP-SDI
厂商: Altera
文件页数: 97/140页
文件大小: 0K
描述: IP VIDEO INTERFACE - SDI
标准包装: 1
系列: *
类型: MegaCore
功能: 视频系统用串行数字接口
许可证: 初始许可证
Chapter 4: SDI Audio IP Cores
SDI Audio Embed MegaCore Function
Table 4–9. SDI Audio Embed MegaCore Function Register Map
4–9
Bit
Name
Access
Description
Video Status Register
Reports the detected video input standard.
Bits[7:5] = Picture structure code.
Defined values for picture structure code are:
001b = 486 or 576 line SD-SDI
100b = 720 line HD-SDI
101b = 1080 line HD-SDI
010b = 1080 line 3G-SDI
Bit[4] = 0b—Interlace or segmented frame, 1b—Progressive.
7:0
Active channels
RO
Bits[3:0] = Frame rate code.
Defined values for frame rate code (in Hz) are:
0010b = 23.97
0011b = 24
0101b = 25
0110b = 29.97
0111b = 30
1001b = 50
1010b = 59.94
1011b = 60
Audio Status Register
7:0
Unused
Reserved for future use.
Channel Status Control Registers
When set to 00b , the core keeps the existing channel status data.
When set to 01b , the core replaces the channel status data with
default values.
When set to 10b , the core replaces the data with the contents of the
appropriate channel status RAM.
7:0
CS mode select
RW
The following bits correspond to the number of audio groups you
specify:
Sine Channel n Frequency
Bit [1:0] = Audio group 1
Bit [3:2] = Audio group 2
Bit [5:4] = Audio group 3
Bit [7:6] = Audio group 4
7:0
Sine channel frequency
RW
Defines the frequency of the generated audio.
Channel Status RAM
Write accesses within the address range 10h to 3Fh to the channel
7:0
Channel status data
WO
status RAM. This field returns the 24 bytes of channel status for X
channels starting at address 10h to 27h, and the 24 bytes of channel
status for Y channels starting at address 28h to 3Fh.
February 2013
Altera Corporation
Serial Digital Interface (SDI) MegaCore Function
User Guide
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